Improvement in lubricators



. UNITED .STATES PATENT OFFICE.

LOUISA PEARSON, OF MANCHESTER, GREAT BRITAIN, ADMIN ISTRATRIX OF THOMASC. PEARSON, DECEASED.

IMPROVEMENT IN LUBRICATORS.

Specification forming part of Letters Patent No. 155,385, datedSeptember 29, 1874; application filed September 22, 1873.

To all whom it may concern:

Be it known that THOMAS CHAR-Lies PEAR- soN, deceased, late of Openshaw,near Manchester, Kingdom of Great Britain and Ireland, invented certainImprovements in Lubricators, of which the following is a specification:l The object of this invention is the construction of a simple form oflubricator, capable of being used to regulate the supply of thelubricating material by turning a handle, which can be set to thegreatest nicety, or to supply the lubricating material on the well knowndisplacement principle; this improved lubricator having no loose part orcover necessary to be removed in order to charge it with the lubricatingmaterial, and the ordinary cock or valve communicating with the outside,for the discharge of the condensed water, being also dispensed with.

Figure 1 is an outside view, and Fig. 2 a sectional view, of alubricator constructed according to this invention.

In Figs. l and 2, A is the body of the lubricator, (hereinaftercalledthe globe,) shown of a spherical form, but which may be varied in shape,according to taste. Upon the top of this globe A is screwed a funnel orcup, B, having holes C at the bottom, communicating with the interior ofthe globe A, into one of which holes is screwed a tube, D, which allowsfor the escape of the air while the globe is being filled. Into thebottom part of this funnel or cup B is screwed a valve-seating, E, fromwhich depends a stationary nut, F, supported by the straps G G. H is ahandle screwed through the center of the funnel or cup B, and having atits lower extremity an annular valve, I, which closes the orice J,formed through the valve-seating E. Through the center of this handlepasses a spindle, K, workin g through the stuffing-box L, and whichspindle is actuated by the handle M, and is screwed through the nut F,as illustrated. 1n this spindle is formed a passage, N, communieatingwiththe-chamber O (situated at the lower part of the globe A, andcommunicating therewith through the neck P) through the side passage Q,and with the interior of the globe through the side passage It. At thebottom of this hollow spindle is also formed a double valve, marked Sand T, the valve S closing the communication between the globe andchamber O by being screwed up to the valve-seating U, and the valve Tclosing the communication between the lubricator and the passage V,leading to the steam-pipe, cylinder, or other vessel to be lubricated,by being screwed down upon the valve-seating W.

The action of this lubricator is as follows: When it becomes necessaryto lill the globe A, the handle M is screwed down so asl to cause thevalve T to close the passage V, leading to thesteam-pipe, cylinder, orother vessel to be lubricated. The handle H is then unscrewed a fewturns, thus raising the annular valve I oft its seating F, when thelubricating material may be introduced into the funnel or cup B, andwill find its way into the globe A through the holes C and oriiice J,the air escaping through the tube D. The handle H now being screwed downagain so as to close the annular valve I, the lubricator is ready foraction, and if it be necessary to supply a quantity of the lubricatingmaterial at once, all that is requisite is to unscrew the handle M, soas to place the double valve S T midway between the two valve-seatin gsU and W, when the lubricating material will fiow freely down the passageV. If, however, it is required to regulate the supply of the lubricatingmaterial, this is accolnplished by adjusting the distance of the valve Toli' its seating W by means of the handle M. Again, if the lubricator-isrequired to ibe used on the displacement principle, the handle M shouldbe nnscrewed until the valve S is closed against its seating U, as seenin Fig. 2, when the steam will enter the globe. A from the chamber Othrough the passages in the hollow spindle, and such steam becomingcondensed in the globe A, the lubricating material therein containedwill be caused to float on the surface of the condensed water, and thusind its way through the upper side passage R into the passage N, and outthrough the side passage Q into the chamber O, from whence it willdescend down the passage W. To remove the condensed water out of theglobe A, it is only necessary to open the valve S,

when it will escape through the chamber O and passage W through thesteam-pipe, cylinder, or other vessel being lubricated. It will thus beseen that this lubricator may be charged with lubricating material whenthe steam-pressureison,andthiswithoutremovng anyloose part or cover, andalso Without the use of an outside cock or Valve at the bottom,

which is always liable to leakage; and, further,

that such lubricator may be used as a` regulator or upon thedisplacement principle.

I claim- The hollow. spindle N, constructed With side passages R and O',.and double valveS 'l at its extremity, working in the chamber O betweenthe two valve-seatings U and W, as and for the purposes described.

LOUISA PEARSON, Admwistmtrix of the estate of Thomas Charles Pearson,deceased.

Witnesses:

WILLIAM RIGBY LAWRENCE, J oHN J. ROYLE.

